So I bough a Wii wireless Sensor bar for dolphin. It worked a few weeks ago but I just cant get it to work. I can only use my Wiimote, and 90% of the Wii WBFS files I have require or is better with sensor bar. I try to connect it, but it only connects to my Wiimote. Help!

It doesn't connect to anything. It's literally just a few IR lights on a stick. The remote itself has an IR camera that looks at the sensor bar to determine where it's being pointed.

It sounds like your sensor bar is either broken or out of batteries, or you're not pointing the remote at it correctly. Make sure you're far enough away from it and that there aren't any other IR sources around, e.g. candles, sunlight from open windows, or people with outrageous tans.